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A205466 as a simple table

na(n)
1256
22120
32120
417920
534792
617920
7151824
8597288
9597288
10151824
111285076
1210306944
1322414008
1410306944
151285076
1610876432
17177411808
18843904488
19843904488
20177411808
2110876432
2292062852
233053150968
2431625643196

[256,2120,2120,17920,34792,17920,151824,597288,
 597288,151824,1285076,10306944,22414008,10306944,
 1285076,10876432,177411808,843904488,843904488,
 177411808,10876432,92062852,3053150968,
 31625643196]